Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 494 insertions, 0 deletions

diff --git a/tools/source/datetime/ttime.cxx b/tools/source/datetime/ttime.cxx
new file mode 100644
index 000000000..ee9e42720
--- /dev/null
+++ b/tools/source/datetime/ttime.cxx
@@ -0,0 +1,494 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <algorithm>
+
+#if defined(_WIN32)
+#if !defined WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+#endif
+#include <windows.h>
+#include <mmsystem.h>
+#elif defined UNX
+#include <sys/time.h>
+#include <unistd.h>
+#endif
+
+#include <time.h>
+#ifdef __MACH__
+#include <mach/clock.h>
+#include <mach/mach.h>
+#include <mach/mach_time.h>
+#endif
+
+#include <rtl/math.hxx>
+#include <tools/time.hxx>
+#include <com/sun/star/util/DateTime.hpp>
+
+#include <systemdatetime.hxx>
+
+#if defined(__sun) && defined(__GNUC__)
+extern long altzone;
+#endif
+
+namespace {
+
+    const sal_Int64 nanoSecInSec = 1000000000;
+    const sal_Int16 secInMin     = 60;
+    const sal_Int16 minInHour    = 60;
+
+    sal_Int64 TimeToNanoSec( const tools::Time& rTime )
+    {
+        short  nSign   = (rTime.GetTime() >= 0) ? +1 : -1;
+        sal_Int32   nHour    = rTime.GetHour();
+        sal_Int32   nMin     = rTime.GetMin();
+        sal_Int32   nSec     = rTime.GetSec();
+        sal_Int32   nNanoSec = rTime.GetNanoSec();
+
+        sal_Int64 nRet = nNanoSec;
+        nRet     +=            nSec * nanoSecInSec;
+        nRet     +=       nMin * secInMin * nanoSecInSec;
+        nRet     += nHour * minInHour * secInMin * nanoSecInSec;
+
+        return (nRet * nSign);
+    }
+
+    tools::Time NanoSecToTime( sal_Int64 nNanoSec )
+    {
+        short nSign;
+        if ( nNanoSec < 0 )
+        {
+            nNanoSec *= -1;
+            nSign = -1;
+        }
+        else
+            nSign = 1;
+
+        tools::Time aTime( 0, 0, 0, nNanoSec );
+        aTime.SetTime( aTime.GetTime() * nSign );
+        return aTime;
+    }
+
+} // anonymous namespace
+
+namespace tools {
+
+Time::Time( TimeInitSystem )
+{
+    if ( !GetSystemDateTime( nullptr, &nTime ) )
+        nTime = 0;
+}
+
+Time::Time( const tools::Time& rTime )
+{
+    nTime = rTime.nTime;
+}
+
+Time::Time( sal_uInt32 nHour, sal_uInt32 nMin, sal_uInt32 nSec, sal_uInt64 nNanoSec )
+{
+    init(nHour, nMin, nSec, nNanoSec);
+}
+Time::Time( const css::util::Time &_rTime )
+{
+    init(_rTime.Hours, _rTime.Minutes, _rTime.Seconds, _rTime.NanoSeconds);
+}
+Time::Time( const css::util::DateTime &_rDateTime )
+{
+    init(_rDateTime.Hours, _rDateTime.Minutes, _rDateTime.Seconds, _rDateTime.NanoSeconds);
+}
+
+void tools::Time::init( sal_uInt32 nHour, sal_uInt32 nMin, sal_uInt32 nSec, sal_uInt64 nNanoSec )
+{
+    // normalize time
+    nSec     += nNanoSec / nanoSecInSec;
+    nNanoSec %= nanoSecInSec;
+    nMin     += nSec / secInMin;
+    nSec     %= secInMin;
+    nHour    += nMin / minInHour;
+    nMin     %= minInHour;
+
+    // construct time
+    nTime = nNanoSec +
+            nSec  * SEC_MASK +
+            nMin  * MIN_MASK +
+            nHour * HOUR_MASK;
+}
+
+void tools::Time::SetHour( sal_uInt16 nNewHour )
+{
+    short  nSign          = (nTime >= 0) ? +1 : -1;
+    sal_Int32   nMin      = GetMin();
+    sal_Int32   nSec      = GetSec();
+    sal_Int32   nNanoSec  = GetNanoSec();
+
+    nTime = nSign *
+            ( nNanoSec +
+              nSec  * SEC_MASK +
+              nMin  * MIN_MASK +
+              nNewHour * HOUR_MASK );
+}
+
+void tools::Time::SetMin( sal_uInt16 nNewMin )
+{
+    short  nSign          = (nTime >= 0) ? +1 : -1;
+    sal_Int32   nHour     = GetHour();
+    sal_Int32   nSec      = GetSec();
+    sal_Int32   nNanoSec  = GetNanoSec();
+
+    // no overflow
+    nNewMin = nNewMin % minInHour;
+
+    nTime = nSign *
+            ( nNanoSec +
+              nSec  * SEC_MASK +
+              nNewMin  * MIN_MASK +
+              nHour * HOUR_MASK );
+}
+
+void tools::Time::SetSec( sal_uInt16 nNewSec )
+{
+    short       nSign     = (nTime >= 0) ? +1 : -1;
+    sal_Int32   nHour     = GetHour();
+    sal_Int32   nMin      = GetMin();
+    sal_Int32   nNanoSec   = GetNanoSec();
+
+    // no overflow
+    nNewSec = nNewSec % secInMin;
+
+    nTime = nSign *
+            ( nNanoSec +
+              nNewSec  * SEC_MASK +
+              nMin  * MIN_MASK +
+              nHour * HOUR_MASK );
+}
+
+void tools::Time::SetNanoSec( sal_uInt32 nNewNanoSec )
+{
+    short       nSign     = (nTime >= 0) ? +1 : -1;
+    sal_Int32   nHour     = GetHour();
+    sal_Int32   nMin      = GetMin();
+    sal_Int32   nSec      = GetSec();
+
+    // no overflow
+    nNewNanoSec = nNewNanoSec % nanoSecInSec;
+
+    nTime = nSign *
+            ( nNewNanoSec +
+              nSec  * SEC_MASK +
+              nMin  * MIN_MASK +
+              nHour * HOUR_MASK );
+}
+
+sal_Int64 tools::Time::GetNSFromTime() const
+{
+    short       nSign     = (nTime >= 0) ? +1 : -1;
+    sal_Int32   nHour     = GetHour();
+    sal_Int32   nMin      = GetMin();
+    sal_Int32   nSec      = GetSec();
+    sal_Int32   nNanoSec  = GetNanoSec();
+
+    return nSign *
+           ( nNanoSec +
+             nSec  * nanoSecInSec +
+             nMin  * (secInMin * nanoSecInSec) +
+             nHour * (minInHour * secInMin * nanoSecInSec) );
+}
+
+void tools::Time::MakeTimeFromNS( sal_Int64 nNS )
+{
+    short nSign;
+    if ( nNS < 0 )
+    {
+        nNS *= -1;
+        nSign = -1;
+    }
+    else
+        nSign = 1;
+
+    // avoid overflow when sal_uIntPtr is 32 bits
+    tools::Time aTime( 0, 0, nNS/nanoSecInSec, nNS % nanoSecInSec );
+    SetTime( aTime.GetTime() * nSign );
+}
+
+sal_Int32 tools::Time::GetMSFromTime() const
+{
+    short       nSign     = (nTime >= 0) ? +1 : -1;
+    sal_Int32   nHour     = GetHour();
+    sal_Int32   nMin      = GetMin();
+    sal_Int32   nSec      = GetSec();
+    sal_Int32   nNanoSec  = GetNanoSec();
+
+    return nSign *
+           ( nNanoSec/1000000 +
+             nSec  * 1000 +
+             nMin  * 60000 +
+             nHour * 3600000 );
+}
+
+void tools::Time::MakeTimeFromMS( sal_Int32 nMS )
+{
+    short nSign;
+    if ( nMS < 0 )
+    {
+        nMS *= -1;
+        nSign = -1;
+    }
+    else
+        nSign = 1;
+
+    // avoid overflow when sal_uIntPtr is 32 bits
+    tools::Time aTime( 0, 0, nMS/1000, (nMS % 1000) * 1000000 );
+    SetTime( aTime.GetTime() * nSign );
+}
+
+double tools::Time::GetTimeInDays() const
+{
+    short  nSign      = (nTime >= 0) ? +1 : -1;
+    double nHour      = GetHour();
+    double nMin       = GetMin();
+    double nSec       = GetSec();
+    double nNanoSec   = GetNanoSec();
+
+    return (nHour + (nMin / 60) + (nSec / (minInHour * secInMin)) + (nNanoSec / (minInHour * secInMin * nanoSecInSec))) / 24 * nSign;
+}
+
+// static
+void tools::Time::GetClock( double fTimeInDays,
+                            sal_uInt16& nHour, sal_uInt16& nMinute, sal_uInt16& nSecond,
+                            double& fFractionOfSecond, int nFractionDecimals )
+{
+    const double fTime = fTimeInDays - rtl::math::approxFloor(fTimeInDays); // date part absent
+
+    // If 0 then full day (or no day), shortcut.
+    // If < 0 then approxFloor() effectively returned the ceiling (note this
+    // also holds for negative fTimeInDays values) because of a near identical
+    // value, shortcut this to a full day as well.
+    // If >= 1.0 (actually == 1.0) then fTimeInDays is a negative small value
+    // not significant for a representable time and approxFloor() returned -1,
+    // shortcut to 0:0:0, otherwise it would become 24:0:0.
+    if (fTime <= 0.0 || fTime >= 1.0)
+    {
+        nHour = nMinute = nSecond = 0;
+        fFractionOfSecond = 0.0;
+        return;
+    }
+
+    // In seconds, including milli and nano.
+    const double fRawSeconds = fTime * tools::Time::secondPerDay;
+
+    // Round to nanoseconds most, which is the highest resolution this could be
+    // influenced by, but if the original value included a date round to at
+    // most 14 significant digits (including adding 4 for *86400), otherwise we
+    // might end up with a fake precision of h:m:s.999999986 which in fact
+    // should had been h:m:s+1
+    // BUT, leave at least 2 decimals to round. Which shouldn't be a problem in
+    // practice because class Date can calculate only 8-digit days for it's
+    // sal_Int16 year range, which exactly leaves us with 14-4-8=2.
+    int nDec = 9;
+    const double fAbsTimeInDays = fabs( fTimeInDays);
+    if (fAbsTimeInDays >= 1.0)
+    {
+        const int nDig = static_cast<int>(ceil( log10( fAbsTimeInDays)));
+        nDec = std::clamp( 10 - nDig, 2, 9 );
+    }
+    double fSeconds = rtl::math::round( fRawSeconds, nDec);
+
+    // If this ended up as a full day the original value was very very close
+    // but not quite. Take that.
+    if (fSeconds >= tools::Time::secondPerDay)
+        fSeconds = fRawSeconds;
+
+    // Now do not round values (specifically not up), but truncate to the next
+    // magnitude, so 23:59:59.99 is still 23:59:59 and not 24:00:00 (or even
+    // 00:00:00 which Excel does).
+    nHour = fSeconds / tools::Time::secondPerHour;
+    fSeconds -= nHour * tools::Time::secondPerHour;
+    nMinute = fSeconds / tools::Time::secondPerMinute;
+    fSeconds -= nMinute * tools::Time::secondPerMinute;
+    nSecond = fSeconds;
+    fSeconds -= nSecond;
+
+    assert(fSeconds < 1.0);     // or back to the drawing board...
+
+    if (nFractionDecimals > 0)
+    {
+        // Do not simply round the fraction, otherwise .999 would end up as .00
+        // again. Truncate instead if rounding would round up into an integer
+        // value.
+        fFractionOfSecond = rtl::math::round( fSeconds, nFractionDecimals);
+        if (fFractionOfSecond >= 1.0)
+            fFractionOfSecond = rtl::math::pow10Exp( std::trunc(
+                        rtl::math::pow10Exp( fSeconds, nFractionDecimals)), -nFractionDecimals);
+    }
+    else
+        fFractionOfSecond = fSeconds;
+}
+
+Time& tools::Time::operator =( const tools::Time& rTime )
+{
+    nTime = rTime.nTime;
+    return *this;
+}
+
+Time& tools::Time::operator +=( const tools::Time& rTime )
+{
+    nTime = NanoSecToTime( TimeToNanoSec( *this ) +
+                           TimeToNanoSec( rTime ) ).GetTime();
+    return *this;
+}
+
+Time& tools::Time::operator -=( const tools::Time& rTime )
+{
+    nTime = NanoSecToTime( TimeToNanoSec( *this ) -
+                           TimeToNanoSec( rTime ) ).GetTime();
+    return *this;
+}
+
+Time operator +( const tools::Time& rTime1, const tools::Time& rTime2 )
+{
+    return NanoSecToTime( TimeToNanoSec( rTime1 ) +
+                          TimeToNanoSec( rTime2 ) );
+}
+
+Time operator -( const tools::Time& rTime1, const tools::Time& rTime2 )
+{
+    return NanoSecToTime( TimeToNanoSec( rTime1 ) -
+                          TimeToNanoSec( rTime2 ) );
+}
+
+bool tools::Time::IsEqualIgnoreNanoSec( const tools::Time& rTime ) const
+{
+    sal_Int32 n1 = (nTime       < 0 ? -static_cast<sal_Int32>(GetNanoSec())       : GetNanoSec() );
+    sal_Int32 n2 = (rTime.nTime < 0 ? -static_cast<sal_Int32>(rTime.GetNanoSec()) : rTime.GetNanoSec() );
+    return (nTime - n1) == (rTime.nTime - n2);
+}
+
+Time tools::Time::GetUTCOffset()
+{
+#if defined(_WIN32)
+    TIME_ZONE_INFORMATION   aTimeZone;
+    aTimeZone.Bias = 0;
+    DWORD nTimeZoneRet = GetTimeZoneInformation( &aTimeZone );
+    sal_Int32 nTempTime = aTimeZone.Bias;
+    if ( nTimeZoneRet == TIME_ZONE_ID_STANDARD )
+        nTempTime += aTimeZone.StandardBias;
+    else if ( nTimeZoneRet == TIME_ZONE_ID_DAYLIGHT )
+        nTempTime += aTimeZone.DaylightBias;
+    tools::Time aTime( 0, static_cast<sal_uInt16>(abs( nTempTime )) );
+    if ( nTempTime > 0 )
+        aTime = -aTime;
+    return aTime;
+#else
+    static sal_uInt64   nCacheTicks = 0;
+    static sal_Int32    nCacheSecOffset = -1;
+    sal_uInt64          nTicks = tools::Time::GetSystemTicks();
+    time_t          nTime;
+    tm              aTM;
+    short           nTempTime;
+
+    // determine value again if needed
+    if ( (nCacheSecOffset == -1)            ||
+         ((nTicks - nCacheTicks) > 360000)  ||
+         ( nTicks < nCacheTicks ) // handle overflow
+         )
+    {
+        nTime = time( nullptr );
+        localtime_r( &nTime, &aTM );
+        sal_Int32 nLocalTime = mktime( &aTM );
+#if defined(__sun)
+        // Solaris gmtime_r() seems not to handle daylight saving time
+        // flags correctly
+        nUTC = nLocalTime + ( aTM.tm_isdst == 0 ? timezone : altzone );
+#elif defined( LINUX )
+        // Linux mktime() seems not to handle tm_isdst correctly
+        sal_Int32 nUTC = nLocalTime - aTM.tm_gmtoff;
+#else
+        gmtime_r( &nTime, &aTM );
+        sal_Int32 nUTC = mktime( &aTM );
+#endif
+        nCacheTicks = nTicks;
+        nCacheSecOffset = (nLocalTime-nUTC) / 60;
+    }
+
+    nTempTime = abs( nCacheSecOffset );
+    tools::Time aTime( 0, static_cast<sal_uInt16>(nTempTime) );
+    if ( nCacheSecOffset < 0 )
+        aTime = -aTime;
+    return aTime;
+#endif
+}
+
+sal_uInt64 tools::Time::GetSystemTicks()
+{
+    return tools::Time::GetMonotonicTicks() / 1000;
+}
+
+#ifdef _WIN32
+static LARGE_INTEGER initPerformanceFrequency()
+{
+    LARGE_INTEGER nTicksPerSecond = { 0, 0 };
+    if (!QueryPerformanceFrequency(&nTicksPerSecond))
+        nTicksPerSecond.QuadPart = 0;
+    return nTicksPerSecond;
+}
+#endif
+
+sal_uInt64 tools::Time::GetMonotonicTicks()
+{
+#ifdef _WIN32
+    static const LARGE_INTEGER nTicksPerSecond = initPerformanceFrequency();
+    if (nTicksPerSecond.QuadPart > 0)
+    {
+        LARGE_INTEGER nPerformanceCount;
+        QueryPerformanceCounter(&nPerformanceCount);
+        return static_cast<sal_uInt64>(
+            ( nPerformanceCount.QuadPart * 1000 * 1000 ) / nTicksPerSecond.QuadPart );
+    }
+    else
+    {
+        return static_cast<sal_uInt64>( timeGetTime() * 1000 );
+    }
+#else
+    sal_uInt64 nMicroSeconds;
+#ifdef __MACH__
+    static mach_timebase_info_data_t info = { 0, 0 };
+    if ( 0 == info.numer )
+        mach_timebase_info( &info );
+    nMicroSeconds = mach_absolute_time() * static_cast<double>(info.numer / info.denom) / 1000;
+#else
+#if defined(_POSIX_TIMERS)
+    struct timespec currentTime;
+    clock_gettime( CLOCK_MONOTONIC, &currentTime );
+    nMicroSeconds
+        = static_cast<sal_uInt64>(currentTime.tv_sec) * 1000 * 1000 + currentTime.tv_nsec / 1000;
+#else
+    struct timeval currentTime;
+    gettimeofday( &currentTime, nullptr );
+    nMicroSeconds = static_cast<sal_uInt64>(currentTime.tv_sec) * 1000 * 1000 + currentTime.tv_usec;
+#endif
+#endif // __MACH__
+    return nMicroSeconds;
+#endif // _WIN32
+}
+
+} /* namespace tools */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */